Parking device



P. GANGLER PARKING DEVICE Dec. 8, 1936.

Filed Dec. 20, 1935 3 Sheets-Sheet l PIC-3.2

@ W K A 47T y- P. GANGLER PARKING DEVICE s Sheets-Sheet 5 Filed Dec. 20,1935 M 2, z y.

Patented Dec. 8, 1936 UNETED STATES PATENT OFFIGE PARKING DEVICE PaulGangler, Esslingen, near Stuttgart, Germany 5 Claims.

My invention relates to a device adapted for automobiles and designed tolift and traverse one end of the automobile or to turn it through anydesired angle for parking in the street or lodging it at any otherplace, this operation being accomplished by means of an auxiliary wheel,which will be named hereafter lifting wheel, and which is susceptible ofa traversing movement and of a rotation, preferably by means of a spareWheel available on the vehicle.

As compared with the known devices of this class, a novel feature of myinvention consists in that, when the device is rendered operative fromthe drivers seat, a rotary movement is imparted to the said liftingwheel, for instance the spare Wheel, which is revolubly mounted on therevoluble traversing device, and the traversing device is coupled by aclutch with the rotating device of the wheel, but in such a way thatevery time when the traversing device has been brought through an angleof 180 degrees from its top position into its lowest position, orinversely, the clutch is disconnected automatically.

This arrangement results in an easy operation of the device and in anessential simplification of its design with the further advantage oflittle space being required, so that e. g. the device may be readilydisposed at the rear end of the car below the trunk support, if any, andutilized for carrying the spare wheel. If desired, the device may bedisposed at the forward end of the car.

The modus operandi of the device consists in that, after the device hasbeen started, the lifting wheel is caused to rotate and continues itsrotation while the traversing device is being lowered so that the wheelfinally gets into contact with the ground where it rolls along whilebeing still power-driven; it thus assists in the lifting operation andsubsequently traverses the automobile to the right or to the left, incorrespondence with the direction of rotation imparted to the wheel.After the automobile has been moved laterally through the angle desired,the traversing device is coupled again with the rotating device of thelifting wheel so that the end of the car is put down with its wheelsupon the ground again, the clutch being disengaged automatically in thetop position of the traversing device whereupon the driver disconnectsthe rotating device of the wheel.

An embodiment of my invention is illustrated, by way of example, in theaccompanying drawings, in which Fig. 1 shows, in side-elevation, thegeneral arrangement of such embodiment of the novel device in which thedevice is disposed at the rear end of an automobile and makes use of aspare Wheel.

Fig. 2 is a top plan view of the device, and

Fig. 3 is a front elevation of the same as seen from the right hand inFigs. 1 and 2,

Fig. 4 shows, as a detail and on a larger scale, a vertical longitudinalsection through the device,

Fig. 5 is a vertical cross-section approximately on line A-B of Fig. 4,

Fig. 6 is a vertical cross-section approximately on line CD of Fig. 4,

Fig. 7 is a horizontal cross-section approximately on line EF of Fig. 4,

Fig. 8 is a vertical longitudinal section, and

Fig. 9 a vertical cross-section through the reversing gear.

In the embodiment shown, the device according to the invention utilizesthe spare wheel 5 and is disposed below the trunk support 58, thusrequiring no additional space.

The casing I of the device is preferably made of a suitable light metaland is, by means of two lateral sleeve-like extensions Ia and lb,suspended from the usual spring shackle bolts 5Ia and 5Ib of the sidemembers 52a and 52b of the car frame. The casing is stiffened by a pipe4| bent into an angle, the apex of said pipe extending through an eyeI40 of the casing I and the two ends thereof being secured to the saidside members 52a and 52b of the frame.

The substantially circular casing is closed by a disc 2 of cast steel orthe like, which is revolubly mounted on an annular seat I 0 provided atthe open end of the casing I and held in place by a ring Id which issuitably secured to the casing. The disc 2 is provided with a crank 3cast integral therewith or fastened thereto in any suitable manner. Thecrank 3 carries at its upper end a wheel pivot 4 cast integral therewithor suitably fastened thereto and intended for receiving the spare wheel5 to be pivotally mounted thereon.

Both the disc 2 and the spare wheel 5 are revolved by means of a jointeddrive shaft 6 which can be operatively connected by the driver to theengine shaft of the car in the well-known way by means of a gear of theconventional type in order to act through a suitable reversing gear I ona jointed drive shaft 8 which is adapted to drive the shaft 8' of ahelical gear 9' suitably mounted in a case-like extension Ie of thecasing I. The helical gear 9' meshes with another helical wheel 9" keyedonto a shaft I0 which is provided with a worm I0 and suitably mounted inthe casing I.

The worm I0 meshes with a worm I wheel I I which is by means of itstubular hub II revolubly mounted on the central shaft l2. At itsright-hand end, the hub II is provided with two jaws II" adapted toengage with suitable jaws I5 of a hollow shaft I5 in order to couplethis hollow shaft I5 always with the worm wheel II so as to transmit arotatory movement. To the front end of the hollow shaft I5, there issecured a spur wheel I6 which is adapted to drive the spur wheel I6"which is revolubly mounted on the wheel pivot 4, through theintermediate idlers I1 and II" which are revolubly mounted on the crank3 in order to rotate the wheel 5 which is detachably connected to thesaid spur wheel I5 by means of a coupling pin 55. This pin is secured tothe wheel I3 and adapted to enter a suitable hole provided in the hubportion of the wheel 5.

A spoke-like arm 42 of the hollow shaft I5 carries a splitted couplingring I3. According to Fig. 6, two lateral axial lugs I3 of the couplingring I3 are shoved over a suitable ledge 42d at the bottom end of thearm 42 so that the coupling ring I3 is thus taken along by the arm 42 ofthe hollow shaft I5 when the'same is rotated. Between the upper arm 42'of the spoke 42, see also Fig. '7, and a member 42 which is fastened tothe arm 42 at 42a and 421), there is pivoted on a pin 420 a spreadinglever 35 carrying cams 30' and 30" disposed between the ends I3a and I3bof the splitted coupling ring I3. The coupling ring I3 is mounted withinan inner annular flange 2' of the revoluble disc 2 to be coupled withthe said ring I3.

The free end 30a of the spreading lever 30 is disposed in the path of atapered sleeve 26, of. Figs. 4 and '7, which is slidably mounted on thehub II so that it can be displaced in an axial direction relatively tothe hollow shaft I5 by means of a rack 29 which with a jaw 29 engages anannular groove 26' of the tapered sleeve 26, and is slidably guided at54' in a bracket 54 fastened to the bottom of the casing I, as shown inFig. 5. The teeth of this rack 29 mesh with the teeth of a sector 28mounted on a shaft 21 which is journalled in the said bracket 54. Theoutside end of this shaft 21 carries a lever I9 to which the end of acable I8 or the like is secured. By pulling the cable I8 the driver canbring the lever I9 from the position shown by full lines in Fig. 1, intothe position shown by dotted lines at (I9) in Fig. 1, so that thetapered sleeve 26 will be displaced from the position shown in Fig. 4 tothe right towards the spreading lever 39 through the intermediary of thetoothed sector 28 and the rack 29.

In order to secure the crank 3 in its upper position as well as in itslower position angularly spaced through an angle of 180 degrees, theflange I f of the casing I is at the respective points provided withcams lb and I2, respectively, having each a notch or recess 25. At thetop end of the crank 3 and on the side thereof, there is pivoted at 24 alever 24 provided with a suitable lug or tooth 24 which is adapted toengage one of the said notches 25 at a time, the lever 24 beingyieldingly pulled towards the center by a spring 34 attached to its freeend.

The lever 24 is disengaged from the top or bottom notch 25 by means oflevers 20 and 2| which are pivotally mounted on the casing I at 20 and2|, respectively, and connected by suitable links 23 and 22,respectively, with the pin I9 of a lateral arm I9a of the lever I9, asis shown by Fig. 1. When the lever I9 is in its neutral positionillustrated by full lines in Fig. 1 the disengaging levers 20 and 2|occupy their inoperative positions shown by Figs 1 and I. When, however,by a pull exerted on the said cable I8 the lever I9 is brought into theposition marked by dotted lines at (I9) in Fig. 1, the arm I9a and thelinks 23 and 22, respectively, will lift the disengaging lever 29 andlower the disengaging lever 2I so that the locking lever 2 1 will,according to its engagement with the top or bottom notch 25 of thecasing flange I be brought out of engagement with the particular notchconcerned.

In the drawings, the reversing gear I is shown in its inoperative oridle position. It is of the usual type and comprises the two pinions 36and 38 which are not revoluble but simultaneously displaceable by meansof the lever lb lengthwise on the shaft Ia driven by the jointed shaft6, the two pinions 37 and 39 keyed to the shaft To which is suitablycoupled with the jointed shaft 8, and the lateral pinion II] keyed tothe shaft 7d and held in permanent mesh with the pinion 39. Thedouble-armed lever 1b is actuated by the driver by means of the twocables 32 and 33, cf. Fig. 1. According to the direction desired of therotation of the wheel 5, the lever 1b will be so shifted that it willdisplace the pinions 36, 38 to the left into the left-hand end positionor to the right into the right-hand end position on shaft Ia. In thefirst instance, the pinion 36 will mesh directly with the pinion 31 andrevolve the shaft 1c and thus the jointed shaft 8 in one direction. Whendisplaced to the right, the pinion 38 will mesh with the lateral orintermediary pinion 40 so that through the pinion 39 the shaft 10 willbe driven in the opposite direction.

The device is operated as follows:

The drawings show the device in the position in which the spare wheel 5occupies its ordinary and inoperative top position.

When it is the question of lifting the rear end of the automobile and ofmoving it laterally to the right or to the left, the driver couples theshaft 6 with the engine shaft, shifts the lever lb of the reversing gearinto the position required for the direction desired of the revolutionof wheel 5, and brings the engaging lever I9, by means of cable I8, intothe position (I9) shown by dotted lines in Fig. 1. By the shaft 6 beingdriven, the jointed shaft 8 will be driven through the intermediary ofthe reversing gear I so that a rotary movement is imparted to the gear9', 9", I and II, to the hub II and to the hollow shaft I and throughthe gear I6, II, II and I6" transmitted to the wheel 5 which is thusrotated in the direction desired. By the lever I9 being shifted, thedisengaging levers 20, 2| are through the links 23 and 22 likewiseturned, against the tension of the spring 34, upwards and downwards,respectively, so that through the le ver 24 the lug 24 will bedisengaged from the top notch 25 so as to release the disc 2. At thesame time, the angular displacement of the lever I9 will result in thetapered sleeve 26 being displaced to the right in. Fig. 4 through theintermediary of the shaft 21 and the gear 28, 29. By this displacementof the conical sleeve 26 the conical surface of the sleeve impactsagainst the lower free end of lever 30 which formerly was in theposition shown in Fig. 6 and is now swung outwardly about the bearingpin 420 to the right in Fig. 6. In consequence of this swinging movementthe cams 36) and 3G engage the respective ends I3a and I3b of the splitcoupling ring I 3-and move the free ends |3a and I3!) outwardly wherebythe coupling ring I3 is'sp-read in frictional engagement with the flange2' of the disc 2. The disc 2 is thus coupled with the hollow shaft Iwhich will impart a rotatory movement to the disc 2 with the crank 3.Consequently, the disc 2 will be revolved through an angle of 180degrees until the lug 24 of the lever 24 taken along with the said discwill, under the tension of the spring 34, drop into the lower notch 25and so allow the return of the levers 20, 2| and consequently of theengagement lever I9 into the positions shown by full lines in Fig. 1. Inthis way, the coupling engagement of the disc 2 with the hollow shaft I5will be interrupted so that only the rotatory movement of the sparewheel 5 will continue. By the rotation of the disc 2 with its crank 3through an angle of 180 degrees, the automobile has been lifted at itsrear end so that it will now be moved transversely to the right or tothe left by the continued rotatory movement of the wheel 5, inaccordance with the position of the reversing gear I. As soon as therear end of the car has arrived at the lateral position desired, thedriver pulls the cable I8 again so as to bring the coupling ring I 3into its operative condition. In the manner above described, the lowerdisengaging lever 2| will now withdraw the lug 24' of lever 24 from thelower notch 25 so that the disc 2 with the spare wheel 5 mounted thereonwill turn again upwards until the lug 24' of the lever 24 has droppedinto the top notch 25. In this way, the car is put again on its runningwheels whereupon the shaft 6 will be disconnected from the engine shaft.

While the disc 2 is revolving, the lug 24 of the lever 24 taking part inthis revolution, slides along the periphery of the casing flange I 1. Asthis flange is provided with the cams [IL and I2, respectively, by thesides of the two notches 25, the lever 24 is lifted by the particularcam shortly prior to the engagement of the lug 24' with the particularnotch, so that the spring 34 is additionally stretched in order that thedropping of the lug 24' into the notch 25 concerned is supported andensured.

It is obvious that various changes may be made in the device shown anddescribed as an embodiment of the present invention, without departingfrom the spirit of the invention and the scope of the claims. Thefollowing claims, therefore, define the invention and its equivalentsonly as much as determined by the state of the art.

What I claim is:

l. A device of the type specified for lifting and traversing one end ofan automobile, comprising in combination, a central driving shaft, meanscomprising a reversible gear to rotate said shaft from the automobileengine, a support turnably mounted on said shaft, a detachable auxiliarywheel rotatably mounted eccentrically on the support, means fortransmitting rotation from the shaft to the wheel, controllable meansadapted to couple said turnable support with said driving shaft, saidsupport being arranged to move, in its turning movement, the wheel froma lifted inoperative position into a lowered operative position enablingthe wheel to lift the end of the car, and means adapted to disconnectautomatically the coupling of the turnable support with the drivingshaft each time the Wheel has been moved into its lowered operativeposition or into its lifted inoperative position.

2. A device of the type specified for lifting and traversing one end ofan automobile, comprising,

in combination, a central driving shaft, means for rotating said shaftin either direction, a disc rotatably mounted on said shaft and carryinga crank-like support provided with a crank pin,

an auxiliary wheel rotatably mounted on the crank pin, means fortransmitting rotation from the said driving shaft to the wheel,controllable means adapted to couple said rotatable disc with thisshaft, said crank-like support being adapted to move, in the rotation ofthe said disc, the auxiliary wheel from a lifted inoperative positioninto a lowered operative position enabling the wheel to lift the end ofthe car, and vice versa, and means adapted to disconnect automaticallythe coupling of the said disc with the driving shaft each time the wheelhas been moved into its lowered operative position or into its liftedinoperative position.

3. A device of the type specified for lifting and traversing one end ofan automobile, comprising, in combination, a central driving shaft,means for rotating said shaft in either direction, a disc rotatablymounted on said shaft and carrying a crank-like support provide-d with acrank pin, a detachable wheel rotatably mounted on the crank pin, meansfor transmitting rotation from the said driving shaft to the wheel,controllable means adapted to couple said disc with the driving shaft,said crank-like support being adapted to move, in the rotation of thedisc, the wheel from a lifted inoperative position into a loweredoperative position enabling the wheel to lift the end of the car, andvice versa, and means adapted to disconnect automatically the couplingof the said disc with the driving shaft each time the wheel has beenmoved into its lower operative position or into its lifted inoperativeposition, said coupling means comprising a lateral annular flange on thesaid rotatable disc, 2. splitted extensible coupling ring mountedconcentrically within this annular flange on an arm secured to thedriving shaft, means for spreading said splitted coupling ring intofrictional contact with said lateral flange of the disc and comprisingan operative lever pivoted on the said arm and projecting with its freeend in the path of a conical sleeve displaceable on the driving shaft,and means comprising a, controllable lever and a gear for displacing thesaid sleeve into an operative position or into an inoperative positionwith respect to the free end of the said operative lever of thespreading means.

4. A device of the type specified for lifting and traversing one end ofan automobile, comprising, in combination, a central driving shaftrotatably mounted in a cylindric casing, means for rotating said shaftin either direction, a disc rotatably mounted on the said shaft andcarrying a cranklike support provided with a crank pin, an auxiliarywheel rotatably mounted on the crank pin, means for transmittingrotation from the driving shaft to the wheel, controllable means adaptedto couple said rotatable disc with the said shaft, said support beingadapted to move, in the rotation of the disc, the wheel from a liftedinoperative position into a lowered operative position enabling thewheel to lift the end of the car, and vice versa, and means adapted todisconnect automatically the coupling of the disc with the driving shafteach time the wheel has been moved into its lower operative position orinto its lifted inoperative position, said disconnecting meansconsisting of a locking lever pivoted on said disc and having a lugadapted to slide, in the rotation of the disc, on a circumferentialannular rib of the said casing and to enter recesses provided in thesaid rib at the points of lifted and lower positions, respectively, ofthe wheel, a spring being provided to hold the said locking lever withits lug in resilient contact with the circumferential rib of the casing.

5. A device of the type specified for lifting and traversing one end ofan automobile, comprising in combination, a central driving shaftrotatably mounted in a cylindric casing, means for rotating said shaftin either direction, a disc rotatably mounted on the said shaft andcarrying a cranklike support provided with a crank pin, an auxiliarywheel rotatably mounted on the crank pin, means for transmittingrotation from the driving shaft to the wheel, coupling means comprisinga controllable lever and adapted to couple said rotatable disc with thesaid shaft, said support being adapted to move, in the rotation of thedisc, the wheel from a lifted inoperative position into a loweredoperative position enabling the wheel to lift the end of the car, andvice versa,

means to disconnect automatically the coupling of the disc with thedriving shaft each time the wheel has been moved into its loweroperative position or into its lifted inoperative position, andconsisting of a spring actuated locking lever pivoted on said disc andhaving a lug adapted to slide, in the rotation of the disc and under thespring action, on a circumferential annular rib of the said casing andto enter locking recesses provided in the said rib at the points oflifted and lower positions, respectively, of the wheel, and means fordisengaging the said locking lever, comprising two lifting arms, each ofwhich is pivotally mounted on the casing at each locking recess thereofand with its free end beneath the recess respective, the lifting armsbeing operatively connected to the said controllable lever of thecoupling means so as to be swung outwardly against the tension of thesaid spring when the controllable lever is moved into its operativeposition.

PAUL GANGLER.

